Neutron reflection from a liquid helium surface

• Date: 2008
• Main Authors: Charlton, T.R., Dalgliesh, R.M., Ganshin, A., Kirichek, O., Langridge, S., McClintock, P.V.E.
• Format: Article
• Language: English
• Published: Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України 2008
• Series: Физика низких температур
• Subjects: Жидкий гелий
• Online Access: https://nasplib.isofts.kiev.ua/handle/123456789/116905
• Journal Title: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Cite this: Neutron reflection from a liquid helium surface / T.R. Charlton, R.M. Dalgliesh, A. Ganshin, O. Kirichek, S. Langridge, P.V.E. McClintock // Физика низких температур. — 2008. — Т. 34, № 4-5. — С. 400–403. — Бібліогр.: 28 назв. — англ.

The reflection of neutrons from a helium surface has been observed for the first time. The ⁴He surface is smoother in the superfluid state at 1.54 K than in the case of the normal liquid at 2.3 K. In the superfluid state we also observe a surface layer ~200 Å thick which has a subtly different neu...